Design of Compact Microstrip U Shape Bandpass Filter Using Via Ground Holes
Abstract: This paper present
the microstrip bandpass filter using two U shape resonators with using via ground
holes. The bandpass filter was established using two U shape resonators with
using via ground holes and deployed on RT/duroid 6010 LM aims to minimize the
dimension of filter. The proposed filter was characterized using software
simulation. The characteristic of proposed filter is to deal with required specification.
Hardware realization was done to verify the characteristic of proposed filter.
The bandpass filter has the dimension of 4.2 mm x 3.8 mm. The filter was
expected to have center frequency of 400 Mhz with minimum 3dB bandwidth of 15
Mhz, maximum insertion loss of -1.5 dB and VSWR less than 2. VSWR and 3dB
bandwidth on realized filter have a good agreement with required specification.
However the insertion loss and center frequency was not adequate. The realized
filter has insertion loss of -2.554 dB with the center frequency of 404.711
MHz.
Author: Fajri Darwis
Journal Code: jptkomputergg160175
